/**
 * Blokkskjema - Component Styles
 * Header, controls, blocks, pills, modal, info sections
 */

/* ============================================
   HEADER
   ============================================ */
.bs-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-10) 0 var(--space-8);
  text-align: center;
  animation: fadeIn var(--duration-slow) var(--ease-out);
}

.bs-header__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--accent);
  color: var(--primary-dark);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--border-radius-pill);
  margin-bottom: var(--space-4);
  letter-spacing: 0.02em;
}

.bs-header__title {
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.bs-header__subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: var(--leading-relaxed);
}

/* ============================================
   CONTROLS (Filters & Tabs)
   ============================================ */
.bs-controls {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-4) 0;
  box-shadow: var(--shadow-sm);
}

.bs-controls__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-4);
}

/* Filter Row */
.bs-filter-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.bs-filter-divider {
  width: 1px;
  height: 24px;
  background: var(--border-default);
}

/* Dropdown Filter */
.bs-filter-dropdown {
  position: relative;
}

.bs-filter-dropdown__btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--border-radius-md);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-default);
  min-width: 180px;
}

.bs-filter-dropdown__btn:hover {
  border-color: var(--border-strong);
  background: var(--bg-subtle);
}

.bs-filter-dropdown__btn[aria-expanded="true"] {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(31, 71, 57, 0.1);
}

.bs-filter-dropdown__label {
  color: var(--text-muted);
  font-weight: 500;
}

.bs-filter-dropdown__value {
  color: var(--text-primary);
  font-weight: 600;
  flex: 1;
}

.bs-filter-dropdown__arrow {
  color: var(--text-muted);
  font-size: 0.75rem;
  transition: transform var(--duration-fast) var(--ease-default);
}

.bs-filter-dropdown__btn[aria-expanded="true"] .bs-filter-dropdown__arrow {
  transform: rotate(180deg);
}

.bs-filter-dropdown__menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
  overflow: hidden;
}

.bs-filter-dropdown__menu.hidden {
  display: none;
}

.bs-filter-dropdown__item {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: transparent;
  border: none;
  text-align: left;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-default);
}

.bs-filter-dropdown__item:hover {
  background: var(--bg-subtle);
  color: var(--text-primary);
}

.bs-filter-dropdown__item--active {
  background: rgba(31, 71, 57, 0.08);
  color: var(--primary);
  font-weight: 600;
}

.bs-filter-dropdown__item--active:hover {
  background: rgba(31, 71, 57, 0.12);
}

/* ============================================
   BLOCKS GRID
   ============================================ */
.bs-main {
  flex: 1;
  padding: var(--space-8) 0;
}

.bs-blocks-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

/* ============================================
   BLOCK CARD (Studieplanlegger-style)
   ============================================ */
.bs-block {
  background: var(--bg-card);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-default);
  animation: fadeInUp var(--duration-slow) var(--ease-out) backwards;
}

.bs-block:nth-child(1) { animation-delay: 0ms; }
.bs-block:nth-child(2) { animation-delay: 75ms; }
.bs-block:nth-child(3) { animation-delay: 150ms; }
.bs-block:nth-child(4) { animation-delay: 225ms; }

.bs-block--disabled {
  display: none;
}

.bs-block--placeholder {
  opacity: 0.6;
}

.bs-block:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

/* Block Header - Green gradient like Studieplanlegger */
.bs-block__header {
  padding: 0.75rem;
  background: linear-gradient(135deg, var(--primary) 0%, rgba(31, 71, 57, 0.9) 50%, var(--primary-light) 100%);
  color: white;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: 0 2px 4px rgba(31, 71, 57, 0.2);
}

/* Block Fag Liste */
.bs-block__fag-liste {
  padding: 0.5rem;
  min-height: 150px;
}

/* ============================================
   FAG ITEM (Compact Studieplanlegger-style)
   ============================================ */
.bs-blokk-fag-item {
  background: white;
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-sm);
  padding: 0.2rem 0.4rem;
  margin: 0.2rem 0;
  font-size: 0.75rem;
  transition: all var(--duration-fast) var(--ease-default);
  animation: fadeInScale var(--duration-normal) var(--ease-out) backwards;
}

.bs-blokk-fag-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* ============================================
   FAGOMRÅDE FARGEKODING
   ============================================ */
/* Realfag (grønn) */
.bs-blokk-fag-item.fagomrade-realfag {
  background: var(--fagomrade-realfag-bg);
  border-color: var(--fagomrade-realfag);
  border-left: 3px solid var(--fagomrade-realfag);
}

.bs-blokk-fag-item.fagomrade-realfag:hover {
  border-color: var(--fagomrade-realfag);
  box-shadow: 0 2px 8px rgba(46, 125, 50, 0.2);
}

/* Samfunn/språk/økonomi (gul) */
.bs-blokk-fag-item.fagomrade-samfunn {
  background: var(--fagomrade-samfunn-bg);
  border-color: var(--fagomrade-samfunn);
  border-left: 3px solid var(--fagomrade-samfunn);
}

.bs-blokk-fag-item.fagomrade-samfunn:hover {
  border-color: var(--fagomrade-samfunn);
  box-shadow: 0 2px 8px rgba(249, 168, 37, 0.2);
}

/* Musikk (rød) */
.bs-blokk-fag-item.fagomrade-musikk {
  background: var(--fagomrade-musikk-bg);
  border-color: var(--fagomrade-musikk);
  border-left: 3px solid var(--fagomrade-musikk);
}

.bs-blokk-fag-item.fagomrade-musikk:hover {
  border-color: var(--fagomrade-musikk);
  box-shadow: 0 2px 8px rgba(198, 40, 40, 0.2);
}

/* Medier (blå) */
.bs-blokk-fag-item.fagomrade-medier {
  background: var(--fagomrade-medier-bg);
  border-color: var(--fagomrade-medier);
  border-left: 3px solid var(--fagomrade-medier);
}

.bs-blokk-fag-item.fagomrade-medier:hover {
  border-color: var(--fagomrade-medier);
  box-shadow: 0 2px 8px rgba(21, 101, 192, 0.2);
}

/* Matematikk 2P (grå) */
.bs-blokk-fag-item.fag-matematikk-2p {
  background: var(--fag-matematikk-2p-bg);
  border-color: var(--fag-matematikk-2p);
  border-left: 3px solid var(--fag-matematikk-2p);
}

.bs-blokk-fag-item.fag-matematikk-2p:hover {
  border-color: var(--fag-matematikk-2p);
  box-shadow: 0 2px 8px rgba(97, 97, 97, 0.2);
}

/* Matematikk R (gradient grønn → gul) */
.bs-blokk-fag-item.fag-matematikk-r {
  background: linear-gradient(135deg, var(--fagomrade-realfag-bg) 0%, var(--fagomrade-samfunn-bg) 100%);
  border-color: var(--fagomrade-realfag);
  border-left: 3px solid var(--fagomrade-realfag);
}

.bs-blokk-fag-item.fag-matematikk-r:hover {
  border-color: var(--fagomrade-realfag);
  box-shadow: 0 2px 8px rgba(46, 125, 50, 0.2);
}

/* Matematikk S (gradient gul → grønn) */
.bs-blokk-fag-item.fag-matematikk-s {
  background: linear-gradient(135deg, var(--fagomrade-samfunn-bg) 0%, var(--fagomrade-realfag-bg) 100%);
  border-color: var(--fagomrade-samfunn);
  border-left: 3px solid var(--fagomrade-samfunn);
}

.bs-blokk-fag-item.fag-matematikk-s:hover {
  border-color: var(--fagomrade-samfunn);
  box-shadow: 0 2px 8px rgba(249, 168, 37, 0.2);
}

.bs-blokk-fag-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.bs-blokk-fag-navn {
  flex: 1;
  font-weight: 500;
  color: var(--text-primary);
}

.bs-blokk-fag-right {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.bs-blokk-fag-timer {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 500;
}

.bs-blokk-fag-note {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: 0.2rem;
  padding-left: 0.25rem;
}

/* ============================================
   FAG INFO BUTTON (i)
   ============================================ */
.bs-fag-info-btn {
  background: transparent;
  border: none;
  padding: 8px;
  margin: -4px;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all var(--duration-fast) var(--ease-default);
  flex-shrink: 0;
  min-width: 32px;
  min-height: 32px;
}

.bs-fag-info-btn:hover {
  background: rgba(31, 71, 57, 0.1);
  color: var(--primary);
  transform: scale(1.1);
}

.bs-fag-info-btn:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.bs-fag-info-btn svg {
  width: 16px;
  height: 16px;
}

/* ============================================
   PLACEHOLDER FOR EMPTY BLOCKS
   ============================================ */
.bs-block--placeholder .bs-block__fag-liste {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100px;
  background: #f5f5f5;
}

.bs-blokk-placeholder-message {
  text-align: center;
  color: #999;
  font-size: 0.9rem;
}

.bs-placeholder-icon {
  display: block;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  opacity: 0.5;
}

.bs-placeholder-text {
  display: block;
}

/* ============================================
   MODAL (Fagkatalog/Studieplanlegger-style)
   ============================================ */
.bs-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-default);
}

.bs-modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.bs-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 20px 20px 20px;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.bs-modal.is-open {
  opacity: 1;
  visibility: visible;
}

#bs-modal-content {
  background: white;
  border-radius: var(--border-radius-xl);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
  animation: modalSlideIn 0.3s ease;
  box-shadow: 0 10px 40px rgba(31, 71, 57, 0.2);
  border: 2px solid var(--accent);
  box-sizing: border-box;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero Section */
.bs-modal__hero {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
}

.bs-modal__hero.no-image {
  height: auto;
  background: linear-gradient(135deg, var(--primary) 0%, #2a5a4a 100%);
  padding: 30px;
}

.bs-modal__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.bs-modal__hero-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 70%;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.85) 0%,
    rgba(0, 0, 0, 0.5) 50%,
    transparent 100%
  );
  pointer-events: none;
}

.bs-modal__hero-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px 30px;
  z-index: 2;
}

.bs-modal__hero.no-image .bs-modal__hero-content {
  position: static;
  padding: 0;
}

.bs-modal__hero-content h2 {
  margin: 0 0 10px 0;
  font-size: 1.8rem;
  color: white;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  font-weight: 700;
}

.bs-modal__hero.no-image .bs-modal__hero-content h2 {
  text-shadow: none;
}

.bs-modal__hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.bs-modal__fagkode-badge {
  background: rgba(232, 245, 163, 0.95);
  color: var(--primary);
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  display: inline-block;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.bs-modal__related-badge {
  background: rgba(255, 255, 255, 0.9);
  color: var(--primary);
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  display: inline-block;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

/* Close Button */
.bs-modal__close {
  position: absolute;
  top: 15px;
  right: 15px;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  font-size: 2rem;
  cursor: pointer;
  color: #999;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all var(--duration-normal);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(10px);
  z-index: 10;
  line-height: 1;
}

.bs-modal__close:hover {
  background: rgba(240, 240, 240, 0.95);
  color: #333;
}

/* Vimeo Video */
.bs-modal__vimeo {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  margin: 20px;
  border-radius: var(--border-radius-md);
}

.bs-modal__vimeo iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Modal Body */
.bs-modal__body {
  padding: 30px;
}

.bs-modal__om-faget {
  margin-bottom: 30px;
}

.bs-modal__om-faget h3 {
  font-size: 1.3rem;
  color: #333;
  margin-bottom: 15px;
  font-weight: 600;
}

.bs-modal__om-faget p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #555;
  margin: 0;
}

/* Accordions */
.bs-modal__accordions {
  margin-bottom: 30px;
}

.bs-modal__accordion {
  margin-bottom: 15px;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  background: rgba(232, 245, 163, 0.15);
  border: 2px solid var(--accent);
  transition: all var(--duration-normal) var(--ease-default);
}

.bs-modal__accordion-header {
  width: 100%;
  cursor: pointer;
  padding: 16px 20px;
  background: rgba(232, 245, 163, 0.3);
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary);
  text-align: left;
  transition: background var(--duration-normal) var(--ease-default);
}

.bs-modal__accordion-header:hover {
  background: rgba(232, 245, 163, 0.5);
}

.bs-modal__accordion.open .bs-modal__accordion-header {
  background: var(--accent);
}

.bs-modal__accordion-icon {
  transition: transform 0.3s ease;
  font-size: 1rem;
  color: var(--primary);
  font-weight: bold;
}

.bs-modal__accordion.open .bs-modal__accordion-icon {
  transform: rotate(180deg);
}

.bs-modal__accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  background: rgba(232, 245, 163, 0.08);
  padding: 0 20px;
  border-top: 1px solid var(--accent);
}

.bs-modal__accordion.open .bs-modal__accordion-content {
  display: block;
  max-height: 2000px;
  padding: 20px;
}

.bs-modal__accordion-content p {
  margin: 0 0 1em 0;
  line-height: 1.8;
  color: #444;
  max-width: 65ch;
}

.bs-modal__accordion-content p:last-child {
  margin-bottom: 0;
}

/* Bullet points in accordion content */
.bs-modal__accordion-content ul {
  margin: 0 0 1em 0;
  padding-left: 20px;
  color: #555;
  line-height: 1.7;
  list-style: disc;
}

.bs-modal__accordion-content li {
  margin-bottom: 8px;
  color: #555;
}

.bs-modal__accordion-content li:last-child {
  margin-bottom: 0;
}

/* Placeholder text */
.bs-modal__accordion-content .placeholder-text,
.bs-modal__body .placeholder-text {
  color: var(--text-muted);
  font-style: italic;
}

/* Kjerneelementer */
.bs-modal__kjerne-item {
  background: white;
  border-left: 3px solid var(--primary);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
  border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
}

.bs-modal__kjerne-item:last-child {
  margin-bottom: 0;
}

.bs-modal__kjerne-item strong {
  display: block;
  color: var(--primary);
  margin-bottom: var(--space-2);
  font-size: 1rem;
  font-weight: 600;
}

.bs-modal__kjerne-item p {
  margin: 0;
  color: #555;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Prerequisites */
.bs-modal__prereq {
  margin-bottom: 20px;
  padding: 15px;
  background: var(--bg-subtle);
  border-radius: var(--border-radius-md);
}

.bs-modal__prereq h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.bs-modal__prereq ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.bs-modal__prereq li {
  background: white;
  padding: 6px 12px;
  border-radius: var(--border-radius-sm);
  font-size: 0.9rem;
  border: 1px solid var(--border-default);
}

/* Læreplan Button */
.bs-modal__lareplan-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--duration-fast);
  margin-top: 20px;
}

.bs-modal__lareplan-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.bs-modal__lareplan-btn svg {
  width: 18px;
  height: 18px;
}